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RCD0 22 > Prelim Examination > Flashcards

Prelim Examination Flashcards

1
Q

It is a digital medical image that stored on a medium to allow quick access until the examination results are reviewed by a radiologist or other physician.

A

PACS

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2
Q

A networked software system for managing medical imagery and associated data.

A

RIS

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2
Q

A standard method of image storage for diagnostic medical images developed by the American College of Radiology (ACR) along with the National Electrical Manufacturers Association (NEMA).

A

DICOM

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3
Q

The practice in which radiologists remotely read examination results and write report.

A

Teleradiology

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4
Q

It is the earliest calculating tool invented by the Ancient Romans.

A

Abacus

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4
Q

He was hired by the US Bureau of Census to design a tabulating machine to record census data.

A

Herman Hollerith

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4
Q

A machine that has a function to decipher or crack secret German military codes during World War II.

A

Colossus

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5
Q

They developed UNIVAC (UNIVersal Automatic Computer), the first commercially successful general-purpose, stored program electronic digital computer.

A

Eckert and Mauchly

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5
Q

He invented a machine called pascaline.

A

Blaise Pascal

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6
Q

It refers to any general-purpose, stored-program electronic digital computer.

A

Computer

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7
Q

It contains a computer chip and indicates time with numbers. It has only two values that vary discretely through coding.

A

Digital

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7
Q

The largest circuitry board inside the computer, and it contains many important small components to make the computer function properly.

A

Motherboard

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8
Q

It is used to store data that needs to be accessed frequently or for a long period of time.

A

Storage

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9
Q

It is the physical component of computer. Some of its examples are motherboard, CPU, mouse, and keyboard.

A

Hardware

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9
Q

It delivers all electricity to the PC and contains a fan to help keep the inside of the computer cool.

A

Power Supply

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9
Q

It uses a liquid crystal display to generate an image on the screen

A

LCD Monitor

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10
Q

The zero or one in the binary system is called

A

Bit

11
Q

Which of the following computer measures is the largest?

A

Word

11
Q

It comes from the Latin for “finger” or “toe”.

A

Digit

12
Q

Any of the discrete elements comprising a three dimensional entity.

A

Voxel

13
Q

What is the imaging plate made from?

A

Photostimulable Phosphor

13
Q

What is the process of computed radiography?

A

A. Patient details and selected examination put into computer system
B. During exposure, IP traps x-rays and stores them as energy in phosphor later to produce latent image on plate
Cassette placed in processor
D. All of the above (correct answer)

14
Q

Cassette-Based system that uses a photostimulable storage phosphor image plate (PSP or IP).

A

Computed Radiography (CR)

15
Q

LASER stands for:

A

Light Amplification by Stimulated Emission of Radiation

16
Q

A light detector of choice for CR

A

Photodiode

17
Q

It converts a light pulse into an electrical signal of
measurable magnitude.

A

Photostimulable Tube

17
Q

It is the ability to emit visible light.

A

Luminescence

18
Q

It is the emission of visible light during stimulation.

A

Fluorescence

19
Q

It is the emission of visible light during and after stimulation.

A

Phosphorescence

19
Q

This layer “traps” the electrons during and after stimulation.

A

Phosphor Layer

20
Q

A semi-rigid material that gives the imaging sheet some strength.

A

Support Layer

20
Q

A type of digital imaging that is fast and allows the image to come up on the monitor straight from the detector without the use of a processor or plate reader.

A

DR

21
Q

It is determined by the number of bits used to define each pixel.

A

Bit Depth

22
Q

It is a two-step process: x-ray photons are converted to light, and then the light photons are converted to an electrical signal.

A

Indirect Conversion

22
Q

It is the ability of the CCD to respond to a wide range of light intensity, from very dim to very bright.

A

Dynamic Range

23
Q

The dynamic range of a typical digital radiography is:

A

16,384

24
Q

It keeps the laser beam at a constant size, shape, speed, and intensity.

A

The Beam Shaping Optics

25
Q

Of all radiographic imaging systems, contrast resolution.

A

Computed Tomography

26
Q

DQE stands for:

A

Detective Quantum Efficiency

27
Q

How efficiently a system converts the x-ray input signal into a useful output image is known as

A

DQE

RCD0 22 (3 decks)

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